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EMF Induced by a Rotating Coil in a Magnetic Field Calculator

Peak and instantaneous EMF of an AC generator coil.

Calculates the peak EMF of a coil rotating in a uniform magnetic field: ε_max = N · B · A · ω, and the instantaneous EMF at a given angle: ε = ε_max · sin(θ).

Nadia Almasri By Nadia Almasri
Published Last reviewed 1 min read

Inputs

T
m²
rad/s
°

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

ε_max = N · B · A · ω; ε = ε_max · sin(θ)

In depth

Calculates the peak EMF of a coil rotating in a uniform magnetic field: ε_max = N · B · A · ω, and the instantaneous EMF at a given angle: ε = ε_max · sin(θ).